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Leaf Spot in Callistemon

How to identify and treat leaf spot in Callistemon.

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Callistemon care requirements

water
Drought-tolerant when mature; water moderately during growth; reduce in winter
soil
Well-draining sandy or gravelly soil; prefers slightly acidic pH; tolerates poor soils
light
Full sun (6–8 hours daily); essential for prolific flowering
symptoms

Symptoms to look for in Callistemon

  • fiber_manual_recordCircular brown or black spots
  • fiber_manual_recordYellow halos around spots
  • fiber_manual_recordPremature defoliation
help

Common causes in Callistemon

Multiple fungal and bacterial pathogens. Favoured by wet foliage and warm temperatures.

healing

How to treat leaf spot in Callistemon

Remove affected leaves. Apply appropriate fungicide or bactericide.

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Preventing leaf spot in Callistemon

Water at soil level. Improve air circulation. Practise crop rotation.